My family recently went to Disney with all my son's dairy free food with us.
When we went to the first restaurant in the Magic Kingdom the waiter informed
us that Disney will work with all diets including dairy free.  All we had to
do was make our reservations and let the restraunt know ahead of time.  In
each and every restaurant a chef came out to speak to us and made whatever my
son desired.  This included the character breakfast at Chef Mickey.  They
even have soy milk at all the restaurants and Rice Dream for Ice cream.  This
was the first vacation for my 9 year son who is dairy and peanut anaphylaxis
where he could order whatever he wanted.  Even at the buffet in the Crystal
Palace.  I have decided when he gets married,  Disney is where he is going on
his honeymoon.  Ha ha ha!  This was also the best vacation I have been on
with my family and not worry about a reaction.  Please let me know if you
have any specific questions and I will get back to you as soon as possible.
Enjoy Disney!  Theresa May